Home / 208,272.16-287,416.96-112,778.85

Finding the Fourth Proportional to 208,272.16, 287,416.96 and 112,778.85

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Solution

The fourth proportional to 208,272.16, 287,416.96 and 112,778.85 is: 155,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,272.16 : 287,416.96 = 112,778.85 : x
  2. Step 2: Convert to fraction form
    208,272.16/287,416.96 = 112,778.85/x
  3. Step 3: Cross multiply
    208,272.16x = 287,416.96 × 112,778.85
  4. Step 4: Simplify right side
    208,272.16x = 32,414,554,219.30
  5. Step 5: Solve for x
    x = 32,414,554,219.30/208,272.16
  6. Step 6: Final answer
    x = 155,635.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.